I have. Twice.
Fast. Very fast.
Comfortable. A bit more leg room than my wee ( I am about 1M96, or 6'5" if you prefer, and athletically built with just a hint of too many cakes).
It handled well too. The steering is quick.
I came away thinking that I would never use anywhere near as much of the power as it offered, but that might just be because I have never ridden anything so fast before.
Actually, if you look for posts by Cearnshaw who 'defected' to a V1000 from a wee, he has written some very helpful and informative reviews recently about his V1000 experiences. Well worth looking for them. He is very impressed by the bike.
Negatives I have heard of:
Fuel gauge is unreliable, as is the trip computer for range.
Range, if pushed hard.
Vibes at some RPMs
MC press moan about dodgy forks. Nobody else seems to have any criticisms in that department though.
Accessories seem a bit thin on the ground
I think for the money you get a lot of motorcycle, and it's good motorcycle as well.